Any institution that charges exorbitant additional fees likely has an interest in selling a new lease or a new car over helping a lessee buy his / her leased vehicle.
Soncino B. T. Sanhedrin I, 148, n. 6, defines «tax collectors and publicans»: «Government lessees who collected customs duties, market tolls and similar special imposts, thus helping the Romans to exact the heavy taxes imposed upon the Jews.»)